Koehler K39496 Water Separability Tester

Update Terakhir
21 Sep 2021
Negara Asal
United States
Pembelian Min
1 unit

Spesifikasi Koehler K39496 Water Separability Tester


Conforms to the specifications of: ASTM D1401, D6074, D6158; ISO 6614; 

DIN 51599; FTM 791-3201; NF T 60-125

Stirrer Range: 1100-2000rpm

Accuracy: ±1.0rpm

Drive: 10hp (75W), high torque

Bath Temperature Range: 25°C to 84°C

Control Stability: ±0.05°C

Capacity: seven (7) 100mL graduated cylinders

Construction: Clear polycarbonate tank 10"x11.25"x9.5" (25.5x28x24cm)

Medium: Water or white technical oil

Medium Capacity: 15.15L (4 gal)


  • Tests emulsion characteristics of lubricating oils

  • Seven sample capacity

  • Movable digital stirrer with microprocessor control incorporates advanced features for flexibility and ease of operation

  • Clear, illuminated heating bath provides excellent visibility

  • Microprocessor temperature control with digital display and built-in protection against overtemperature and low liquid level hazards

  • Conforms to ASTM, ISO and related standards for water separability testing

  • Optional sensor for direct measurement of sample temperature

  • With built in drain for convenient draining of bath medium

Test Method

The ability of a lubricating oil to separate from water and resist emulsification is an important performance characteristic for applications involving water contamination and turbulence. Water separability is determined by stirring equal volumes of water and sample together at a controlled temperature to form an emulsion and observing the time required for separation of the emulsion to occur. This method is suitable for petroleum oils and synthetic fluids.


Seven-sample Water Separability Tester provides full visibility and microprocessor control of all functions for simplified, accurate testing of up to seven samples at a time. Use for specification of new oils and monitoring of in-service petroleum oils and synthetic fluids. Seven position heating bath–A full visibility bath immerses seven 100mL cylinders at the proper depth per ASTM and ISO specifications. Sample cylinders are held securely in place by stainless steel supports inside the bath. A microprocessor based heater controls bath operating controls bath fluid temperature with greater than ±1°C accuracy and stability throughout the operating range of 25°C to 84°C. Large LED readouts display setpoint and actual temperatures in Celsius or Fahrenheit scale at the operator’s option. For most samples, ASTM/ISO sample temperatures of 54°C and 82°C are attained within 10 minutes after placement of the test cylinders into the stabilized bath. Clear polycarbonate tank has backlighting for excellent visibility when viewing emulsion separations in the test cylinders. Cut-off circuits for low water level and over-temperature conditions provide protection in the event of equipment malfunction. Easy removal of top plate for filling or cleaning the bath. Polycarbonate jar is encased in a Polyester-Epoxy finished steel housing with a protective distortion-free viewing window and a solid foundation. 

Electrical Requirements

115V 60Hz, Single Phase, 12A

220-240V 50/60 Hz, Single Phase, 12A

Included Accessories

  • Seven 100mL Cylinders

Additional Accessories

  • 332-002-018 Cylinder 100mL, graduated from 5 to 100mL with 1.0mL divisions

  • 250-000-19F ASTM 19F Thermometer. Range: 120 to 134°F 

  • 250-000-19C ASTM 19C Thermometer. Range: 49 to 57°C

  • 250-000-21F ASTM 21F Thermometer. Range: 174 to 188°F 

  • 250-000-21C ASTM 21C Thermometer. Range: 79 to 87°C

  • K39252 PTFE Policeman 

  • K39251 Test Tube Rack

Alat Laboratorium Umum

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